S-97768A269 10-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Enhanced wear resistance and reduced light reflection provided by the black oxide finish, improving component longevity and performance in sensitive assemblies.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring reliable fastening under significant mechanical stress.
• Precise alignment and smooth rotation due to the standard shoulder fit and knurled head, which prevents slipping during installation and maintains component positioning.
• Secure and accurate thread engagement with a Class 3A UNF fine thread, offering a tighter fit and reduced risk of loosening in high-vibration applications.
• Easy installation and removal using the 1/8" hex drive and socket head design, allowing for efficient assembly with standard tools in confined spaces.
• Compliance with rigorous industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety, reliability, and environmental responsibility.

Professional Applications & Engineering Value

This 10-32 UNF shoulder screw is engineered to address common challenges in precision machinery and industrial equipment, such as misalignment and component wear. The 18-8 stainless steel material provides excellent corrosion resistance, while the black oxide finish reduces galling and enhances durability in demanding environments. The fine UNF thread and Class 3A fit ensure secure fastening with minimal backlash, critical for applications like pivots, gears, and rotating assemblies. The 1-3/4" shoulder length offers stable support for moving parts, reducing friction and extending the life of connected components. Ideal for use in automation, automotive, and electronics, this screw delivers reliable performance where precision and strength are paramount.

Specification Summary & Compliance

This shoulder screw features a 10-32 UNF thread with Class 3A fit for high precision, a shoulder diameter of 1/4" with tight tolerance (-0.004" to -0.002"), and a shoulder length of 1-3/4" with minimal variation (-0.005" to 0.005"). It meets ASME B18.3 specifications for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.